2026 NPPES data Neurology Physician NPI 1225271455 MD
Verify on CMS →

SIAMAC ESFANDI, MD

Neurology Physician in LAKEWOOD, Colorado. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
1K
Medicare Part D claims · 230 beneficiaries · Neurology Physician avg: 1K
MIPS score
88.2296/100
▲ 5 pts above national avg 83.1 · [object Object]
Industry payments
$259.11
8 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

SIAMAC ESFANDI, MD reported a CMS MIPS final score of 88.2296/100 — above the 83.1 national average — and filed 1,394 Medicare Part D claims in 2023.

88.2296/100
MIPS score · +5 vs avg
1K
Part D claims, 2023
Likely
board-certified (heuristic)

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) — no proprietary rating or editorial opinion is applied.

SIAMAC ESFANDI, MD's MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

88 Top 44% higher than 56% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). Below this entry. 80–90: 129,887 scored providers (27%). This entry sits in this band. 90–100: 189,403 scored providers (40%). Above this entry. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored providers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Merit-based Incentive Payment System (MIPS) · 2023

Board certification likely (heuristic — not verified)

SIAMAC ESFANDI, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about SIAMAC ESFANDI, MD?

High performer (top quartile)

NPI registry status

Active

Issued 04/17/2009

NPI 1225271455

Primary specialty

Neurology Physician

Mid-sized

19,866 US NPIs in this specialty

Medicare Part D claims

1,394 6% vs specialty avg

2023 prescription claims

Specialty avg: 1,309

MIPS final score

88.2296/100 5.129600000000011% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in Colorado

How Neurology Physician compares to other specialties among Colorado providers

Colorado providers

Neurology Physician share within Colorado

1. Neurology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Neurology Physician share within Colorado

Medicare quality performance — MIPS

SIAMAC ESFANDI, MD's 2023 MIPS final score plotted against the Neurology Physician national average

High performer (top quartile)
MIPS Final Score
88.2296/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Neurology Physician) — 88.2296/100 vs national avg 83.1

0%100%National avg83%88.2%
MIPS final score (Neurology Physician) — 88.2296/100 vs national avg 83.1

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

SIAMAC ESFANDI, MD appears in the CMS NPPES registry as a Neurology Physician provider holding MD credentials at 11750 W 2ND PL STE 255, LAKEWOOD, CO, 80228, with a listed phone of (720) 321-8040. NPI 1225271455 was issued on 04/17/2009. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ESFANDI most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 1,394 prescription claims written by this provider, covering 230 Medicare beneficiaries and totaling roughly $619K in drug spend, with an opioid prescribing rate of 2.7%. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 88.2296/100 for the 2023 performance year (Quality 88.9629), compared with the national average of 83.1.

Neurology Physician is a mid-sized specialty nationwide, with 19,866 enrolled providers across 54 states and an average of 1,309 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

11750 W 2ND PL STE 255
LAKEWOOD, CO 80228

Provider Details

NPI 1225271455
Specialty Neurology Physician
Credentials MD
Gender Male
NPI Issued 04/17/2009

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

88.2296
Final Score
Avg: 83.1
88.9629
Quality
81
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where SIAMAC ESFANDI, MD bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

CATHOLIC HEALTH INITIATIVES COLORADO
LAKEWOOD, CO

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for SIAMAC ESFANDI, MD. Source: openpaymentsdata.cms.gov.

Total received

$259

Largest payer

Novartis Pharmaceuticals Corporation

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

1,394
Total Claims
$619K
Total Drug Cost
230
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,423
Total Day Supply
69,886
Generic Drug Cost
$227K
Opioid Claims
38 (2.7% rate)

Patient Demographics

Average Patient Age
67.0 years
Avg HCC Risk Score
1.46
Gender Split
61% female / 39% male
Age Distribution
<65: 67, 65-74: 108, 75-84: N/A, 85+: N/A

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What SIAMAC ESFANDI, MD prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Duloxetine Hcl
153
Gabapentin
151
Baclofen
74
Aimovig Autoinjector
Erenumab-Aooe
71
Dalfampridine Er
Dalfampridine
61
Tizanidine Hcl
49
Sumatriptan Succinate
48
Venlafaxine Hcl Er
Venlafaxine Hcl
48
Pregabalin
43
Nortriptyline Hcl
39

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Neurology Physician Overview

How SIAMAC ESFANDI, MD fits within the Neurology Physician landscape nationally.

19,866
Neurology Physician Providers in US
54
States with Neurology Physician
1,309
Avg Claims per Provider

SIAMAC ESFANDI, MD's 1,394 claims are above the specialty average of 1,309.

Nearby Neurology Physician Providers in Colorado

Other clinicians with the same primary specialty enrolled in Colorado, drawn from the same CMS NPPES roster as ESFANDI.

Compare Neurology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is SIAMAC ESFANDI, MD's specialty?
SIAMAC ESFANDI, MD specializes in Neurology Physician and practices in LAKEWOOD, Colorado. Credentials: MD.
How much does SIAMAC ESFANDI, MD prescribe under Medicare Part D?
In 2023, SIAMAC ESFANDI, MD wrote 1,394 Medicare Part D claims totaling $619K in drug costs for 230 beneficiaries.
What is SIAMAC ESFANDI, MD's Medicare quality score?
SIAMAC ESFANDI, MD has a CMS MIPS Final Score of 88.2296/100 (Quality: 88.9629). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is SIAMAC ESFANDI, MD located?
SIAMAC ESFANDI, MD is located at 11750 W 2ND PL STE 255, LAKEWOOD, CO, 80228. Phone: (720) 321-8040.
What is SIAMAC ESFANDI, MD's NPI number?
SIAMAC ESFANDI, MD's National Provider Identifier (NPI) is 1225271455, issued on 04/17/2009.
Does SIAMAC ESFANDI, MD prescribe opioids?
Yes, SIAMAC ESFANDI, MD had 38 opioid claims in 2023 with an opioid prescribing rate of 2.7%.
How many Neurology Physician providers are there in the US?
There are 19,866 Neurology Physician providers across 54 states in the US. The average Neurology Physician provider writes 1,309 Medicare Part D claims per year.
What drugs does SIAMAC ESFANDI, MD prescribe most often?
Based on 2023 Medicare Part D data, SIAMAC ESFANDI, MD's most frequently prescribed drugs include Duloxetine Hcl, Gabapentin, Baclofen. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does SIAMAC ESFANDI, MD accept Medicare?
SIAMAC ESFANDI, MD appears in CMS Medicare data with 1,394 Part D claims and 230 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify SIAMAC ESFANDI, MD's credentials?
SIAMAC ESFANDI, MD's NPI is 1225271455 with credentials MD. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology